package net.minecraft.command.server;

import java.util.List;
import net.minecraft.block.Block;
import net.minecraft.block.state.IBlockState;
import net.minecraft.command.CommandBase;
import net.minecraft.command.CommandException;
import net.minecraft.command.CommandResultStats;
import net.minecraft.command.ICommandSender;
import net.minecraft.command.WrongUsageException;
import net.minecraft.init.Blocks;
import net.minecraft.inventory.IInventory;
import net.minecraft.nbt.JsonToNBT;
import net.minecraft.nbt.NBTException;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.BlockPos;
import net.minecraft.world.World;

public class CommandSetBlock extends CommandBase {
	/**
	 * Gets the name of the command
	 */
	public String getCommandName() {
		return "setblock";
	}

	/**
	 * Return the required permission level for this command.
	 */
	public int getRequiredPermissionLevel() {
		return 2;
	}

	/**
	 * Gets the usage string for the command.
	 */
	public String getCommandUsage(ICommandSender sender) {
		return "commands.setblock.usage";
	}

	/**
	 * Callback when the command is invoked
	 */
	public void processCommand(ICommandSender sender, String[] args) throws CommandException {
		if (args.length < 4) {
			throw new WrongUsageException("commands.setblock.usage", new Object[0]);
		} else {
			sender.setCommandStat(CommandResultStats.Type.AFFECTED_BLOCKS, 0);
			BlockPos blockpos = parseBlockPos(sender, args, 0, false);
			Block block = CommandBase.getBlockByText(sender, args[3]);
			int i = 0;

			if (args.length >= 5) {
				i = parseInt(args[4], 0, 15);
			}

			World world = sender.getEntityWorld();

			if (!world.isBlockLoaded(blockpos)) {
				throw new CommandException("commands.setblock.outOfWorld", new Object[0]);
			} else {
				NBTTagCompound nbttagcompound = new NBTTagCompound();
				boolean flag = false;

				if (args.length >= 7 && block.hasTileEntity()) {
					String s = getChatComponentFromNthArg(sender, args, 6).getUnformattedText();

					try {
						nbttagcompound = JsonToNBT.getTagFromJson(s);
						flag = true;
					} catch (NBTException nbtexception) {
						throw new CommandException("commands.setblock.tagError",
								new Object[] { nbtexception.getMessage() });
					}
				}

				if (args.length >= 6) {
					if (args[5].equals("destroy")) {
						world.destroyBlock(blockpos, true);

						if (block == Blocks.air) {
							notifyOperators(sender, this, "commands.setblock.success", new Object[0]);
							return;
						}
					} else if (args[5].equals("keep") && !world.isAirBlock(blockpos)) {
						throw new CommandException("commands.setblock.noChange", new Object[0]);
					}
				}

				TileEntity tileentity1 = world.getTileEntity(blockpos);

				if (tileentity1 != null) {
					if (tileentity1 instanceof IInventory) {
						((IInventory) tileentity1).clear();
					}

					world.setBlockState(blockpos, Blocks.air.getDefaultState(), block == Blocks.air ? 2 : 4);
				}

				IBlockState iblockstate = block.getStateFromMeta(i);

				if (!world.setBlockState(blockpos, iblockstate, 2)) {
					throw new CommandException("commands.setblock.noChange", new Object[0]);
				} else {
					if (flag) {
						TileEntity tileentity = world.getTileEntity(blockpos);

						if (tileentity != null) {
							nbttagcompound.setInteger("x", blockpos.getX());
							nbttagcompound.setInteger("y", blockpos.getY());
							nbttagcompound.setInteger("z", blockpos.getZ());
							tileentity.readFromNBT(nbttagcompound);
						}
					}

					world.notifyNeighborsRespectDebug(blockpos, iblockstate.getBlock());
					sender.setCommandStat(CommandResultStats.Type.AFFECTED_BLOCKS, 1);
					notifyOperators(sender, this, "commands.setblock.success", new Object[0]);
				}
			}
		}
	}

	public List<String> addTabCompletionOptions(ICommandSender sender, String[] args, BlockPos pos) {
		return args.length > 0 && args.length <= 3 ? func_175771_a(args, 0, pos)
				: (args.length == 4 ? getListOfStringsMatchingLastWord(args, Block.blockRegistry.getKeys())
						: (args.length == 6
								? getListOfStringsMatchingLastWord(args, new String[] { "replace", "destroy", "keep" })
								: null));
	}
}
